Yamaha - Water Pump Repair Kit - Cooling System Service Kit - 6N6-W0078-00-00

Overview

The Yamaha Water Pump Repair Kit | 6N6-W0078-00-00 is one of those kits you grab when you want to fully reset the cooling system instead of patching it piece by piece. On these larger 2-stroke motors, once the pump starts wearing out, you’ll usually see it in weak water flow or rising temps under load. This kit gives you the main components to bring everything back to proper working condition. If you’re doing maintenance or fixing cooling issues, it’s a solid, complete solution.

Key Features

• Complete Pump Service Kit – Includes essential components needed to rebuild and restore water pump performance.

• OEM Fit Precision – Built to Yamaha specifications for proper alignment and reliable operation.

• Restores Cooling Efficiency – Helps bring back strong water flow and stable engine temperatures.

• Durable Marine Components – Designed to handle heat, friction, and continuous marine use.

Engine & Boat Compatibility

• 115 1993-1996
• 130 1993-1996
• C115 1993-1996
• L130 1993-1996
• P115 1993-1996
• S115 1996-1996
• S130 1996-1996

FAQs

Q1: When should I replace the full water pump instead of just the impeller?
A: If plates, seals, or internal parts show wear, replacing everything together is the better option.

Q2: What are signs the water pump needs rebuilding?
A: Weak water stream, overheating, or inconsistent cooling performance are common signs.

Q3: Does this kit include everything needed for the job?
A: Yes, it includes the main internal components required to service the pump.

Q4: Is this routine maintenance?
A: Yes, especially for older 2-stroke engines where wear builds over time.

Q5: Is installation difficult?
A: It requires removing the lower unit, but it’s a standard repair for most outboards.

• Engine Application
  • 115 - 1993 to 1996
  • 130 - 1993 to 1996
  • C115 - 1993 to 1996
  • L130 - 1993 to 1996
  • P115 - 1993 to 1996
  • S115 - 1996 to 1996
  • S130 - 1996 to 1996